Toyota Sienna Service Manual: Engine Coolant Temperature Receiver Gauge Malfunction
DESCRIPTION
The meter CPU receives engine coolant temperature signals from the ECM via the multiplex communication lines. The meter CPU displays engine coolant temperature that is calculated based on the data received from the ECM.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT: If there is an open or short in the engine coolant temperature sensor circuit, the ECM will store the DTCs.
Perform troubleshooting of the "SFI System"
1 CHECK MULTIPLEX COMMUNICATION SYSTEM
- Check if the MULTIPLEX communication DTC is output
Result
2 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position.
- Turn the tester ON.
- Enter the following menus: DIAGNOSIS / OBD/MOBD / METER / ACTIVE TEST.
- Check the operation by referring to the values in the table below.
METER:
OK: Needle indication is normal.
3 READ VALUE OF INTELLIGENT TESTER
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position.
- Turn the tester ON.
- Enter the following menus: DIAGNOSIS / ENGINE / DATA LIST.
- Check the values by referring to the values in the table below.
ENGINE:
4 REPLACE COMBINATION METER ASSEMBLY
OK: The operation of the combination meter assembly returns to normal.
END
Fuel Receiver Gauge Malfunction
DESCRIPTION
The meter CPU uses the fuel sender gauge assembly to determine the level of
the fuel in the fuel tank.
The resistance of the fuel sender gauge will vary between approximately 15 ] ...
Driver Side Seat Belt Warning Light does not Operate
DESCRIPTION
When turning the ignition switch to the ON position, the combination meter
assembly communicates with
the supplemental restraint system by the multiplex communication system. Unless
...
Other materials:
Auto Up Operation does not Fully Close Power Window (Jam
Protection Function is Activated)
DESCRIPTION
If AUTO UP operation does not fully close the power window, the following
conditions may be the cause.
The reset of the power window motor has not been completed,
resulting in activation of the jam
protection function.
The memory of the power window switch misse ...
Air Conditioning Compressor Magnetic Clutch Circuit
DESCRIPTION
When the A/C amplifier is turned on, a magnetic clutch ON signal is sent from
the MGC terminal of the A/
C amplifier. Then, the MG CLT relay turns on to operate the magnetic clutch.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK CAN COMMUNICATION SYSTEM
(a) Use the intelligent t ...
Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
2. REMOVE REAR NO. 2 SEAT LEG SIDE GARNISH SUB-ASSEMBLY
Disengage the 9 clips and remove the rear No. 2
seat leg side garnish sub-assembly.
Remove the 9 clips from the rear No. 2 seat leg side
garnish sub-assembly.
3. ...
